The botanical collection – comprising the herbarium (plants & algae) and the fungarium (fungi and slime moulds) – contain ca. one million specimens in total. Botanical collections are of outstanding scientific importance. They also represent a prominent element of cultural heritage. Among the treasures of the Stuttgart Herbarium are collections from the Second Expedition to Kamtschatka (1733-1743) by Alexander Wilhelm Martini (1702-1781), vouchers documenting biodiversity change in SW-Germany and a large number of African specimens.